Water filtration is a process used to remove impurities and contaminants from water in order to make it safe for consumption or for use in various industrial processes. This can involve physical methods such as passing water through a filter to remove larger particles, as well as chemical methods such as using activated carbon to adsorb pollutants. Water filtration is essential for ensuring clean and safe drinking water, and is also used in wastewater treatment plants to remove pollutants before releasing water back into the environment. Research in this area is focused on developing more efficient and cost-effective filtration systems, as well as understanding the impact of various contaminants on human health and the environment.